Home / 45,972.12-68,979.24-27,289.20

Finding the Fourth Proportional to 45,972.12, 68,979.24 and 27,289.20

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Solution

The fourth proportional to 45,972.12, 68,979.24 and 27,289.20 is: 40,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,972.12 : 68,979.24 = 27,289.20 : x
  2. Step 2: Convert to fraction form
    45,972.12/68,979.24 = 27,289.20/x
  3. Step 3: Cross multiply
    45,972.12x = 68,979.24 × 27,289.20
  4. Step 4: Simplify right side
    45,972.12x = 1,882,388,276.21
  5. Step 5: Solve for x
    x = 1,882,388,276.21/45,972.12
  6. Step 6: Final answer
    x = 40,946.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.